Contrast Control [Brill Video]; Sea Clutter Suppression [Rain]; Sea Clutter Suppression [Sea] - JRC JMA-9922-6XA Instruction Manual

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Contrast Control [BRILL VIDEO]･･･････････････････････････
The contrast of the radar video display can be adjusted in four levels. Press the PANEL button on
the screen, then select [BRILL VIDEO]. Each time the brilliance button
will switch to VIDEO
the radar screen. (The VIDEO indication will change to the PANEL indicated in several second.)
Adjust the [BRILL VIDEO] switch to obtain the best-to-see video with optimum contrast.
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Sea Clutter Suppression [SEA]････････････････････････････
This control is used to reduce the receiving sensitivity on a short range to suppress the sea clutter
returns.
Clockwise rotation of the [SEA] control can suppress sea clutter returns more effectively.
careful not to suppress sea clutter excessively. Otherwise, small buoys and boats may disappear
from the radar display.
When setting "SEA" to "SEA AUTO" , sea clutter returns can be suppressed depending on their
intensity levels. This setting is used for the case in which the sea clutter returns are different in
their directions.
Switching between manual and auto is done by clicking the"SEA AUTO" / "SEMI AUTO"button on
the lower left of the screen, or pressing the"SEA"knob.
Note: It is not allowed to use both the AUTO / SEMI AUTO SEA mode and the AUTO
Attention
In the AUTO SEA mode, there are cases in which the targets are not displayed
because the sea clutter returns are suppressed in a simple way.
Use the manual [SEA] control during sailing under normal conditions.
In the AUTO RAIN mode, there are cases in which the targets are not displayed
because the rain/snow clutter returns are suppressed in a simple way.
Use the manual [SEA] control during sailing under normal conditions.
RAIN mode at the same time.
. The current mode is displayed on the lower right of
SEA
3-13
is clicked, the screen
Be